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Fuel Pump

This section just applies to the conditions which the ECU triggers the fuel pump between the high and low setting. It’s starts as a simple 2D table based off engine load and RPM. The Load Reset table is just to switch back to low when the ECU doesn’t detect a change in load anymore.

I threw the operation comments into the tables. As it turns out, the fuel pump is switched to high mode after you first start the car and stays there for a set time after startup. I was surprised to find that the ECU also keeps it switched into high mode while coolant temps > 203 degF and air intake temps > 140 degF.

This page was posted on Tuesday, April 16th, 2013 at 11:21 pm by bfarnam and last modified on Friday, April 19th, 2013 at 11:32 pm by bfarnam